Jawabanmu

2014-05-13T20:43:56+07:00
A. 180 - 40 - 50 =90 drjt
b  180 - 39 - 49 = 92
c. 180 - 110 - 34 = 36
d. 180 - 90 - 29 = 61

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2014-05-13T20:46:40+07:00
A. 40+50+x = 180, 90+x =180, x=180-90 = 90
B. 39+49+x = 180, 88+x = 180, x= 180-88 = 92
C 110+34+x = 180, 144+x=180, x= 180-144= 36
D 90+29+x=180, 119+x=180, x= 180-119=61
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